I've been asked a lot lately if tennis is clean or not. I don't know any more how you judge whether a sport is clean. If one in 100 players is doping, in my eyes that isn't a clean sport.

Davis Cup, you know, does take a lot out of you over the weekend. It's tough, especially if you play all three days.

I wouldn't say I'm a spender in the sense that I'm going out on huge spending sprees. However, to be able to function at the top of your game on the professional tennis circuit often requires an element of frequent spending.

I don't go out of my way to get noticed. When I'm in Scotland it's tough, because loads of people come up to me. They're always really polite. It's nice, it's fun and good to speak to people who aren't involved in tennis, but some have this habit of just staring at me and that makes me really self-conscious. I'd rather they came up and said hello.

There's no doubt Milos Raonic will be a very tough final opponent, after all he beat [ Roger] Federer on Centre Court to get there.

I'll never pay above the odds for something if there's a more cost-effective alternative, so I guess that's where the saver in me shines through.

I was pretty young when I bought my first place, and at that time didn't really view it as an investment. After living there for a few years I decided to move out of London, so I decided to rent it out for a few years. Then, as the property market continued to rise, I made the decision to sell.